Date Printed: 5/2/2025 02:00 Daily Summary Report Site: Clemmons Middle 5/1/2025 Interval: 001h Ozone PM2.5 PM10 LC PM Coarse Time ppm µg/m3 µg/m3 µg/m3 00:00 .012 7.7 15.0 7.2 01:00 .007 8.1 15.3 7.1 02:00 .011 9.0 15.9 6.9 03:00 .011 9.2 15.1 5.9 04:00 .009 10.3 15.9 5.6 05:00 .011 11.7 17.3 5.5 06:00 .014 12.2 30.1 17.9 07:00 .024 12.3 28.4 16.1 08:00 .032 11.8 23.6 11.7 09:00 .037 11.7 23.7 12.0 10:00 .043 12.5 25.5 13.0 11:00 .047 10.9 22.2 11.3 12:00 .050 10.3 21.0 10.7 13:00 .050 9.5 21.0 11.4 14:00 .053 9.2 20.4 11.1 15:00 .055 8.3 21.5 13.1 16:00 .053 8.3 21.8 13.4 17:00 .046 9.9 22.5 12.6 18:00 .045 10.6 21.6 10.9 19:00 .044 10.1 18.5 8.3 20:00 .042 9.6 17.4 7.8 21:00 .041 9.8 17.5 7.7 22:00 .039 C 9.9 17.4 7.5 23:00 C 9.5 16.5 7.0 Average .033 10.1 20.2 10.0 Max .055 12.5 30.1 17.9 Max Hour 15:00 10:00 06:00 06:00 Min .007 7.7 15.0 5.5 Count 23 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 01-May-2025 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 01-May-2025 22:50:00 23:50:00 0.067 0.07 -3.1% Date Printed: 5/2/2025 02:00 Daily Summary Report Site: Hattie Avenue (A) 5/1/2025 Interval: 001h Ozone Ozone: Calibrator NO NO2 NOx SO2 Time ppm ppm ppb ppb ppb ppb 00:00 .009 0 .4 8.1 8.5 .1 01:00 .010 0 .2 6.8 7.0 .0 02:00 .014 0 .1 5.4 5.6 .1 03:00 .010 0 .2 5.6 5.9 .1 04:00 .013 0 .1 5.2 5.3 .0 05:00 .010 0 .4 7.4 7.8 .1 06:00 .012 0 1.6 8.5 10.1 .1 07:00 D 0.0817 1.2 5.1 6.4 .1 08:00 D 0.0163 .6 3.3 3.9 .2 09:00 .036 0 .3 2.5 2.8 .2 10:00 .042 0 .2 2.4 2.7 .2 11:00 .046 0 .1 2.2 2.3 .2 12:00 .048 0 .1 2.1 2.2 .1 13:00 .049 0 .1 2.2 2.3 .1 14:00 .054 0 .1 2.5 2.7 .2 15:00 .057 0 .1 C 2.7 C 2.9 C .1 16:00 .054 0.0074 C C C .1 17:00 .046 0 .0 C 3.6 C 3.7 C .1 18:00 .042 0 .0 4.2 4.2 .1 19:00 .041 0 .0 4.4 4.3 .1 20:00 .041 0 .0 4.0 3.9 C 21:00 .039 0 .0 4.2 4.1 .1 C 22:00 .038 C 0 .0 3.9 3.9 .1 23:00 C 0.0343 .0 3.7 3.7 .1 Average .033 0.0058 .2 4.3 4.6 .1 Max .057 0.0817 1.6 8.5 10.1 .2 Max Hour 15:00 07:00 06:00 06:00 06:00 14:00 Min .009 0 .0 2.1 2.2 .0 Count 21 24 23 23 23 23 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error NO NOx_Auto NO-PREC 01-May-2025 15:46:00 16:11:00 66.8 70 -4.43% GPT-PS 01-May-2025 15:46:00 16:18:00 0.4 0.0 .41 GPTZ 01-May-2025 15:46:00 16:38:00 215.7 225 -4.13% GPT-PREC 01-May-2025 15:46:00 17:08:00 149.1 155 -3.75% NO2 GPT-PREC 01-May-2025 15:46:00 17:08:00 67 70 -4.26% NO2 Precision NO2_Diff PRECDIFF 01-May-2025 17:15:00 17:15:05 66.5 67.018 -.72% NOx NOx_Auto NO-PREC 01-May-2025 15:46:00 16:11:00 66.9 70 -4.35% Ozone O3_Auto ZERO 01-May-2025 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 01-May-2025 22:50:00 23:50:00 0.067 0.069 -2.8% SO2 SO2_Auto ZERO 01-May-2025 20:00:00 20:20:00 0 0.0 .07 SPAN 01-May-2025 20:00:00 20:40:00 87.6 89.6 -2.19% PREC 01-May-2025 20:00:00 21:00:00 38.7 40 -3.03% Date Printed: 5/2/2025 02:00 Daily Summary Report Site: Hattie Avenue (B) 5/1/2025 Interval: 001h PM2.5 PM10 STP PM Coarse Time µg/m3 µg/m3 µg/m3 00:00 8.7 22.0 13.1 01:00 8.7 22.0 13.1 02:00 9.0 19.8 10.6 03:00 10.0 20.1 10.0 04:00 12.4 21.6 8.9 05:00 13.4 22.5 8.9 06:00 14.0 25.2 10.9 07:00 12.0 22.8 10.3 08:00 12.5 24.2 11.1 09:00 12.5 23.7 10.5 10:00 12.5 24.5 11.1 11:00 12.5 23.4 9.9 12:00 11.0 24.1 12.0 13:00 10.3 23.2 11.8 14:00 10.2 24.3 13.0 15:00 9.1 24.0 13.8 16:00 9.0 26.0 15.9 17:00 9.9 25.0 14.2 18:00 11.2 23.3 11.4 19:00 11.4 21.3 9.2 20:00 10.6 20.5 9.3 21:00 10.6 19.3 8.3 22:00 10.5 19.7 8.8 23:00 10.3 18.3 7.7 Average 10.9 22.5 10.9 Max 14.0 26.0 15.9 Max Hour 06:00 16:00 16:00 Min 8.7 18.3 7.7 Count 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error 0.0 -3.03% Date Printed: 5/2/2025 02:00 Daily Summary Report Site: Union Cross 5/1/2025 Interval: 001h Ozone Temperature Dew Point Wind Speed Wind Direction Relative Humidity Barometric Pres. Time ppm DegC DegC MPH DEG PERCENT mmHg 00:00 .018 B 18.9 16.3 1.7 247 87.0 737.9 01:00 .022 18.9 16.4 3.2 226 87.0 737.7 02:00 .019 18.7 16.4 2.6 227 88.3 737.5 03:00 .016 18.5 16.6 2.4 202 90.0 737.6 04:00 .013 18.1 16.5 2.7 205 91.7 737.8 05:00 .013 17.6 16.3 2.3 207 93.5 738.0 06:00 .017 18.1 16.2 4.0 217 90.4 738.3 07:00 .027 19.9 16.0 5.2 232 80.5 738.4 08:00 .034 21.9 16.4 5.9 238 72.4 738.3 09:00 .038 23.2 16.8 6.2 232 67.8 738.3 10:00 .042 24.3 17.1 6.2 242 63.9 738.3 11:00 .045 25.7 17.3 7.5 230 57.9 737.8 12:00 .048 26.2 16.9 7.5 229 53.5 737.4 13:00 .055 26.9 16.5 9.2 221 48.0 736.8 14:00 .057 27.4 16.3 8.2 223 44.4 736.3 15:00 .056 27.5 16.4 8.4 217 43.8 735.7 16:00 .054 B 26.8 15.8 7.6 228 44.7 735.5 17:00 .050 25.8 15.5 6.8 239 48.0 735.5 18:00 .044 24.1 16.1 4.4 246 59.7 735.4 19:00 .042 23.3 15.9 4.9 231 62.8 735.7 20:00 .041 22.7 15.6 4.9 225 64.2 735.6 21:00 .037 21.7 15.1 4.3 219 66.8 735.7 22:00 .036 C 21.0 14.9 3.8 220 69.0 735.8 23:00 C 20.8 15.1 4.4 217 71.1 735.9 Average .035 22.4 16.2 5.1 226 68.6 736.9 Max .057 27.5 17.3 9.2 247 93.5 738.4 Max Hour 14:00 15:00 11:00 13:00 00:00 05:00 07:00 Min .013 17.6 14.9 1.7 202 43.8 735.4 Count 23 24 24 24 24 24 24 Total Calibration Report Parameter Sequence Phase Start Time End Time Value Expected Value % Error Ozone O3_Auto ZERO 01-May-2025 22:50:00 23:20:00 -0.001 0.0 0.00 PREC 01-May-2025 22:50:00 23:50:00 0.0689 0.07 -1.48% Flags T Out of Control A Arithmetic Error (math calculation error) t Out of Control (Partial) S Site Visit s Site Activity > Some Data Missing + Max Exceeded - Min Exceeded < Logger Invalid ? Suspect a Audit B Bad Status C Calibration c Ceiling Limit D Channel Disabled E Edited e Site Malfunction f Floor Limit H High-High Alarm h High Alarm I Invalidated By Edit J High Rate of Change Exceeded L Low-Low Alarm l Low Alarm M Maintenance m Marked Maint by edit O Overrange o Other P Power Failure p Precision Check Q Quality Assured R Rate of Change Exceeded V Dig Info#1 W Dig Info#2 X Dig Info#3 Y Dig Info#4 Z Dig Info#5 z Zero Adjusted F Boiler Offline j Low Rate of Change Exceeded